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{-|
Module : Gargantext.Database.TextSearch
Description : Postgres text search experimentation
Copyright : (c) CNRS, 2017-Present
License : AGPL + CECILL v3
Maintainer : team@gargantext.org
Stability : experimental
Portability : POSIX
-}
{-# LANGUAGE Arrows #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RankNTypes #-}
module Gargantext.Database.TextSearch where
import Data.Aeson
import Data.Map.Strict hiding (map, drop, take)
import Data.Maybe
import Control.Lens ((^.))
import Data.List (intersperse, take, drop)
import Data.String (IsString(..))
import Data.Text (Text, words, unpack, intercalate)
import Data.Time (UTCTime)
import Database.PostgreSQL.Simple (Query)
import Database.PostgreSQL.Simple.ToField
import Gargantext.Database.Config (nodeTypeId)
import Gargantext.Database.Types.Node (NodeType(..))
import Gargantext.Prelude
--import Gargantext.Database.Node.Contact
import Gargantext.Database.Facet
import Gargantext.Database.Schema.Node
import Gargantext.Database.Schema.Ngrams
import Gargantext.Database.Schema.NodeNode hiding (joinInCorpus)
import Gargantext.Database.Schema.NodeNodeNgrams
import Gargantext.Database.Queries.Join (leftJoin6)
import Gargantext.Database.Utils (Cmd, runPGSQuery, runOpaQuery, runCountOpaQuery)
import Gargantext.Text.Terms.Mono.Stem.En (stemIt)
import Gargantext.Core.Types
import Control.Arrow (returnA)
import qualified Opaleye as O hiding (Order)
import Opaleye hiding (Query, Order)
------------------------------------------------------------------------
searchInDatabase :: ParentId
-> Text
-> Cmd err [(NodeId, HyperdataDocument)]
searchInDatabase p t = runOpaQuery (queryInDatabase p t)
where
-- | Global search query where ParentId is Master Node Corpus Id
queryInDatabase :: ParentId -> Text -> O.Query (Column PGInt4, Column PGJsonb)
queryInDatabase _ q = proc () -> do
row <- queryNodeSearchTable -< ()
restrict -< (_ns_search row) @@ (pgTSQuery (unpack q))
restrict -< (_ns_typename row) .== (pgInt4 $ nodeTypeId NodeDocument)
returnA -< (_ns_id row, _ns_hyperdata row)
------------------------------------------------------------------------
-- | todo add limit and offset and order
searchInCorpus :: CorpusId
-> IsTrash
-> [Text]
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Cmd err [FacetDoc]
searchInCorpus cId t q o l order = runOpaQuery
$ filterWith o l order
$ queryInCorpus cId t
$ intercalate " | "
$ map stemIt q
searchCountInCorpus :: CorpusId
-> IsTrash
-> [Text]
-> Cmd err Int
searchCountInCorpus cId t q = runCountOpaQuery
$ queryInCorpus cId t
$ intercalate " | "
$ map stemIt q
queryInCorpus :: CorpusId
-> IsTrash
-> Text
-> O.Query FacetDocRead
queryInCorpus cId t q = proc () -> do
(n, nn) <- joinInCorpus -< ()
restrict -< (nn^.nn_node1_id) .== (toNullable $ pgNodeId cId)
restrict -< if t
then (nn^.nn_category) .== (toNullable $ pgInt4 0)
else (nn^.nn_category) .>= (toNullable $ pgInt4 1)
restrict -< (n ^. ns_search) @@ (pgTSQuery (unpack q))
restrict -< (n ^. ns_typename ) .== (pgInt4 $ nodeTypeId NodeDocument)
returnA -< FacetDoc (n^.ns_id )
(n^.ns_date )
(n^.ns_name )
(n^.ns_hyperdata)
(nn^.nn_category)
(nn^.nn_score )
joinInCorpus :: O.Query (NodeSearchRead, NodeNodeReadNull)
joinInCorpus = leftJoin queryNodeSearchTable queryNodeNodeTable cond
where
cond :: (NodeSearchRead, NodeNodeRead) -> Column PGBool
cond (n, nn) = nn^.nn_node2_id .== _ns_id n
------------------------------------------------------------------------
type AuthorName = Text
-- | TODO Optim: Offset and Limit in the Query
-- TODO-SECURITY check
searchInCorpusWithContacts
:: CorpusId
-> ListId
-> [Text]
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Cmd err [FacetPaired Int UTCTime HyperdataDocument Int [Pair Int Text]]
searchInCorpusWithContacts cId lId q o l order =
take (maybe 10 identity l)
<$> drop (maybe 0 identity o)
<$> map (\((i,u,h,s), ps) -> FacetPaired i u h s ps)
<$> toList <$> fromListWith (<>)
<$> map (\(FacetPaired i u h s (p1,p2)) -> ( (i,u,h,s)
, catMaybes [Pair <$> p1 <*> p2]
)
)
<$> searchInCorpusWithContacts' cId lId q o l order
-- TODO-SECURITY check
searchInCorpusWithContacts'
:: CorpusId
-> ListId
-> [Text]
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Cmd err [(FacetPaired Int UTCTime HyperdataDocument Int (Maybe Int, Maybe Text))]
searchInCorpusWithContacts' cId lId q o l order =
runOpaQuery $ queryInCorpusWithContacts cId lId o l order
$ intercalate " | "
$ map stemIt q
queryInCorpusWithContacts
:: CorpusId
-> ListId
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Text
-> O.Query FacetPairedRead
queryInCorpusWithContacts cId _lId _ _ _ q = proc () -> do
(n, (nn, (_nng, (ngrams', (_, contacts))))) <- joinInCorpusWithContacts -< ()
restrict -< (n^.ns_search) @@ (pgTSQuery $ unpack q )
restrict -< (n^.ns_typename) .== (pgInt4 $ nodeTypeId NodeDocument)
-- restrict -< (nng^.nnng_node1_id) .== (toNullable $ pgNodeId lId)
restrict -< (nn^.nn_node1_id) .== (toNullable $ pgNodeId cId)
-- -- restrict -< (nng_listType nng) .== (toNullable $ pgNgramsType Authors)
-- restrict -< (contacts^.node_typename) .== (toNullable $ pgInt4 $ nodeTypeId NodeContact)
-- -- let contact_id = ifThenElse (isNull $ _node_id contacts) (toNullable $ pgInt4 0) (_node_id contacts)
returnA -< FacetPaired (n^.ns_id)
(n^.ns_date)
(n^.ns_hyperdata)
(pgInt4 0)
(contacts^.node_id, ngrams'^.ngrams_terms)
joinInCorpusWithContacts :: O.Query ( NodeSearchRead
, ( NodeNodeReadNull
, ( NodeNodeNgramsReadNull
, ( NgramsReadNull
, ( NodeNodeNgramsReadNull
, NodeReadNull
)
)
)
)
)
joinInCorpusWithContacts =
leftJoin6
queryNodeTable
queryNodeNodeNgramsTable
queryNgramsTable
queryNodeNodeNgramsTable
queryNodeNodeTable
queryNodeSearchTable
cond12
cond23
cond34
cond45
cond56
where
cond12 :: (NodeNodeNgramsRead, NodeRead) -> Column PGBool
cond12 (nnng, n2) = n2^.node_id .== nnng^.nnng_node1_id
cond23 :: (NgramsRead, (NodeNodeNgramsRead, NodeReadNull)) -> Column PGBool
cond23 (ng2, (nnng2, _)) = nnng2^.nnng_ngrams_id .== ng2^.ngrams_id
cond34 :: ( NodeNodeNgramsRead
, ( NgramsRead
, ( NodeNodeNgramsReadNull
, NodeReadNull
)
)
) -> Column PGBool
cond34 (nng, (ng, (_,_))) = ng^.ngrams_id .== nng^.nnng_ngrams_id
cond45 :: ( NodeNodeRead
, ( NodeNodeNgramsRead
, ( NgramsReadNull
, ( NodeNodeNgramsReadNull
, NodeReadNull
)
)
)
) -> Column PGBool
cond45 (nn, (nng, (_,(_,_)))) = nng^.nnng_node1_id .== nn^.nn_node2_id
cond56 :: ( NodeSearchRead
, ( NodeNodeRead
, ( NodeNodeNgramsReadNull
, ( NgramsReadNull
, ( NodeNodeNgramsReadNull
, NodeReadNull
)
)
)
)
) -> Column PGBool
cond56 (n, (nn, (_,(_,(_,_))))) = _ns_id n .== nn^.nn_node2_id
newtype TSQuery = UnsafeTSQuery [Text]
-- | TODO [""] -> panic "error"
toTSQuery :: [Text] -> TSQuery
toTSQuery txt = UnsafeTSQuery $ map stemIt txt
instance IsString TSQuery
where
fromString = UnsafeTSQuery . words . cs
instance ToField TSQuery
where
toField (UnsafeTSQuery xs)
= Many $ intersperse (Plain " && ")
$ map (\q -> Many [ Plain "plainto_tsquery("
, Escape (cs q)
, Plain ")"
]
) xs
data Order = Asc | Desc
instance ToField Order
where
toField Asc = Plain "ASC"
toField Desc = Plain "DESC"
-- TODO
-- FIX fav
-- ADD ngrams count
-- TESTS
textSearchQuery :: Query
textSearchQuery = "SELECT n.id, n.hyperdata->'publication_year' \
\ , n.hyperdata->'title' \
\ , n.hyperdata->'source' \
\ , n.hyperdata->'authors' \
\ , COALESCE(nn.score,null) \
\ FROM nodes n \
\ LEFT JOIN nodes_nodes nn ON nn.node2_id = n.id \
\ WHERE \
\ n.search @@ (?::tsquery) \
\ AND (n.parent_id = ? OR nn.node1_id = ?) \
\ AND n.typename = ? \
\ ORDER BY n.hyperdata -> 'publication_date' ? \
\ offset ? limit ?;"
-- | Text Search Function for Master Corpus
-- TODO : text search for user corpus
-- Example:
-- textSearchTest :: ParentId -> TSQuery -> Cmd err [(Int, Value, Value, Value, Value, Maybe Int)]
-- textSearchTest pId q = textSearch q pId 5 0 Asc
textSearch :: TSQuery -> ParentId
-> Limit -> Offset -> Order
-> Cmd err [(Int,Value,Value,Value, Value, Maybe Int)]
textSearch q p l o ord = runPGSQuery textSearchQuery (q,p,p,typeId,ord,o,l)
where
typeId = nodeTypeId NodeDocument